rebase the caravel project
diff --git a/caravel b/caravel
index 13f2590..cda6c3c 160000
--- a/caravel
+++ b/caravel
@@ -1 +1 @@
-Subproject commit 13f2590e4b3a74b910dac56a6b757f5a66fd5212
+Subproject commit cda6c3ca1158b495f002bf90860941c3a9af1784